论文信息 - The influence of operating variables on the residence time distribution for material transport in a continuous rotary drum

The influence of operating variables on the residence time distribution for material transport in a continuous rotary drum

Abstract Experimental results for the influence of operating variables on the mean and variance of the residence time distribution for material transport in a continuous rotary drum are described. The variables considered are drum rotational speed, drum inclination, feed rate of material and particle size of material. A stimulus-response technique based on an impulse of a colored tracer, otherwise identical to the bulk material, was used. The validity of the axial dispersion model for the description of the behavior of this non-segregating transport system is demonstrated. This is accomplished with an approximate form of the exact solution to the axial dispersion model for an impulse input; it is valid for the relatively large values of the Peclet number characteristic of the experimental system.

Douglas W. Fuerstenau | K.V.S. Sastry | T. S. Mika | A.-Z.M. Abouzeid

[1] Kenneth B. Bischoff,et al. Patterns of Flow in Chemical Process Vessels , 1964 .

[2] Sakae Yagi,et al. On the Residence Time Curves of the Continuous Reactors , 1953 .

[3] P. T. Luckie,et al. Residence time distributions in mills , 1971 .

[4] Douglas W. Fuerstenau,et al. Simulation of diffusional mixing of particulate solids by Monte Carlo techniques , 1967 .

[5] L. T. Fan,et al. Mixing of Solid Particles in Motionless Mixer-Axial-Dispersed Plug-Flow Model , 1973 .

[6] Douglas W. Fuerstenau,et al. Transverse mixing in rotating cylinders , 1972 .

[7] C. J. Restarick,et al. Continuous grinding in a small wet ball mill. Part III. A study of distribution of residence time , 1969 .

[8] W. Goossens,et al. Sampling a heterogeneous powder using a spinning riffler , 1971 .

[9] R. P. Gardner,et al. A combined tracer and back-calculation method for determining particulate breakage functions in ball milling.: Part III. Simulation of an open-circuit continuous milling system , 1973 .